Analysis
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max time kernel
143s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
05-08-2024 13:47
General
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Target
PC_ST/2. Install/Visual-C-Runtimes-All-in-One/vcredist2005_x64.exe
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Size
3.0MB
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MD5
56eaf4e1237c974f6984edc93972c123
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SHA1
ee916012783024dac67fc606457377932c826f05
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SHA256
0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0
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SHA512
f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736
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SSDEEP
49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in Program Files directory 1 IoCs
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Drops file in Windows directory 57 IoCs
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Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Modifies data under HKEY_USERS 3 IoCs
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Modifies registry class 56 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of FindShellTrayWindow 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\PC_ST\2. Install\Visual-C-Runtimes-All-in-One\vcredist2005_x64.exe"C:\Users\Admin\AppData\Local\Temp\PC_ST\2. Install\Visual-C-Runtimes-All-in-One\vcredist2005_x64.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec /i vcredist.msi2⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵
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C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 49BCD539316D9167B4B8EE554FF593B12⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cabFilesize
312KB
MD577a9bff5af149160775741e204734d47
SHA17b5126af69b5a79593f39db94180f1ff11b0e39d
SHA25620a26ed9a1edf7763a9b515522c5e29720048a482c7fbc8b7ff6bbdd27e61038
SHA512bb0440f58f07e113bddd9a0afb5aab8af6493218784fe5fa6f4032e3a37088f91b7e766dee87cec4a9ea11d425d27b3b536430de3a52222e8bca3e0247d81e3b
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msiFilesize
3.0MB
MD56dbdf338a0a25cdb236d43ea3ca2395e
SHA1685b6ea61e574e628392eaac8b10aff4309f1081
SHA256200fef5d4994523a02c4daa00060db28eb289b99d47fc6c1305183101e72bdeb
SHA5126b5b31c55cf72ab92b17fb6074b3901a1e6afe0796ef9bc831e4dfb97450376d2889cd24b1cf3fce60eb3c1bcd1b31254b5cfa3ef6107974dfa0b35c233daf5a
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C:\Windows\Installer\MSIFB38.tmpFilesize
28KB
MD585221b3bcba8dbe4b4a46581aa49f760
SHA1746645c92594bfc739f77812d67cfd85f4b92474
SHA256f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f
SHA512060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d
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\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2Filesize
23.7MB
MD5026c1793cc65079f932492e3610cfc00
SHA1449bbb464e7652ff038a6bd71ef93706e00e4777
SHA256325a11b6bce1cbefb212d5fe29fca4da75bda4d70a29376cf9559587df619045
SHA512bbbb4711ac177db224a89a843e6ba218d5fa402cb009da44830df8853e839d0e4df2506d554ef19a1c1cf70f9111b9be3994245e4cf0ff0a54143cce5d9b3241
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\??\Volume{fa3589b5-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{7434a5f4-1cf4-4f23-a7e4-390b448c99e6}_OnDiskSnapshotPropFilesize
6KB
MD5659105b511ffe61a1ab76db31f3cca31
SHA18448ff79e4eaaa25a65fad40426484818b1dd591
SHA256dcef5d9dc39443a4da478a9163de68d7b9d44ac8652b10d437ee445f72d5238c
SHA512b735a3f1ad72405c57bb8600c3ac9872a76b05510b945d4b2241d8faa9b4721e20a7c12fa2f833144fd1c988304aa358f115ea4da7177eecc5d31ffb22ca3d86